Local information disclosure via uncleared GPU context state
Published Apr 9, 2020 · Updated Sep 17, 2024
Information disclosure in the i915 driver in Canonical Ubuntu Linux kernel before 4.15.0-91.92 allows local users to read sensitive data. The Ubuntu backport fails to record and restore the default GPU hardware state, leaving residual context data uncleared. A low-privileged local account and an affected Intel graphics processor are required; the flaw exposes prior GPU context data without altering it.
Summary
What happened
Information disclosure in the i915 driver in Canonical Ubuntu Linux kernel before 4.15.0-91.92 allows local users to read sensitive data. The Ubuntu backport fails to record and restore the default GPU hardware state, leaving residual context data uncleared. A low-privileged local account and an affected Intel graphics processor are required; the flaw exposes prior GPU context data without altering it.
The record
- CVE
- CVE-2020-8832
- Published
- Apr 9, 2020
- Updated
- Sep 17, 2024
- Vendor
- Canonical
- Product
- Ubuntu Linux kernel
- Classifications
- CWE-200, T1005
- Attack vector
- local
- Privileges
- authenticated
Timeline
How it unfolded
- Apr 9, 2020CVE publishedPublication date reported by the CVE source.
- Sep 17, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=4.15.x kernels <4.15.0-91.92
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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